Firewall Block everything

Hello Dore,
Thank you for contacting AVG support community.
We are sorry for the trouble caused.
| AVG (https://support.avg.com/SupportArticleView?l=en&urlName=Use-AVG-Antivirus-Enhanced-Firewall&supportType=home)
Please refer add trusted network in the above article, follow the gudielines and check the status.
Thank you and keep us updated.

Hello, I'm in the trial period and I just uninstalled AVG ultimate because it blocks everything without notification so I'm not sure how to allow connections back.
I lost internet connection, lost connection to the LAN or locally connected devices like scanner and printers.

I have to uninstall because I allowed Windows sharing and printers but still not working 

Hello Dore,
Thank you for contacting AVG support community.
We are sorry for the trouble caused.
| AVG (https://support.avg.com/SupportArticleView?l=en&urlName=Use-AVG-Antivirus-Enhanced-Firewall&supportType=home)
Please refer add trusted network in the above article, follow the gudielines and check the status.
Thank you and keep us updated.